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Diet transcriptome

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https://www.readbyqxmd.com/read/28811572/inhibition-of-connexin-hemichannels-alleviates-non-alcoholic-steatohepatitis-in-mice
#1
Joost Willebrords, Bruno Cogliati, Isabel Veloso Alves Pereira, Tereza Cristina da Silva, Sara Crespo Yanguas, Michaël Maes, Veronica Mollica Govoni, Andressa Lima, Daniele Aparecida Felisbino, Elke Decrock, Marina Sayuri Nogueira, Inar Alves de Castro, Isabelle Leclercq, Luc Leybaert, Robim Marcelino Rodrigues, Mathieu Vinken
While gap junctions mediate intercellular communication and support liver homeostasis, connexin hemichannels are preferentially opened by pathological stimuli, including inflammation and oxidative stress. The latter are essential features of non-alcoholic steatohepatitis. In this study, it was investigated whether connexin32 and connexin43 hemichannels play a role in non-alcoholic steatohepatitis. Mice were fed a choline-deficient high-fat diet or normal diet for 8 weeks. Thereafter, TAT-Gap24 or TAT-Gap19, specific inhibitors of hemichannels composed of connexin32 and connexin43, respectively, were administered for 2 weeks...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808417/down-regulation-of-aminopeptidase-n-and-abc-transporter-subfamily-g-transcripts-in-cry1ab-and-cry1ac-resistant-asian-corn-borer-ostrinia-furnacalis-lepidoptera-crambidae
#2
Tiantao Zhang, Brad S Coates, Yueqin Wang, Yidong Wang, Shuxiong Bai, Zhenying Wang, Kanglai He
The Asian corn borer (ACB), Ostrinia furnacalis (Lepidoptera: Crambidae), is a highly destructive pest of cultivated maize throughout East Asia. Bacillus thuringiensis (Bt) crystalline protein (Cry) toxins cause mortality by a mechanism involving pore formation or signal transduction following toxin binding to receptors along the midgut lumen of susceptible insects, but this mechanism and mutations therein that lead to resistance are not fully understood. In the current study, quantitative comparisons were made among midgut expressed transcripts from O...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28802040/aged-stem-cells-reprogram-their-daily-rhythmic-functions-to-adapt-to-stress
#3
Guiomar Solanas, Francisca Oliveira Peixoto, Eusebio Perdiguero, Mercè Jardí, Vanessa Ruiz-Bonilla, Debayan Datta, Aikaterini Symeonidi, Andrés Castellanos, Patrick-Simon Welz, Juan Martín Caballero, Paolo Sassone-Corsi, Pura Muñoz-Cánoves, Salvador Aznar Benitah
Normal homeostatic functions of adult stem cells have rhythmic daily oscillations that are believed to become arrhythmic during aging. Unexpectedly, we find that aged mice remain behaviorally circadian and that their epidermal and muscle stem cells retain a robustly rhythmic core circadian machinery. However, the oscillating transcriptome is extensively reprogrammed in aged stem cells, switching from genes involved in homeostasis to those involved in tissue-specific stresses, such as DNA damage or inefficient autophagy...
August 10, 2017: Cell
https://www.readbyqxmd.com/read/28794922/molecular-characterization-of-eccipk24-gene-of-finger-millet-eleusine-coracana-for-investigating-its-regulatory-role-in-calcium-transport
#4
Mahadev Chinchole, Rajesh Kumar Pathak, Uma M Singh, Anil Kumar
Finger millet grains contain exceptionally high levels of calcium which is much higher compared to other cereals and millets. Since calcium is an important macronutrient in human diet, it is necessary to explore the molecular basis of calcium accumulation in the seeds of finger millet. CIPK is a calcium sensor gene, having role in activating Ca(2+) exchanger protein by interaction with CBL proteins. To know the role of EcCIPK24 gene in seed Ca(2+) accumulation, sequence is retrieved from the transcriptome data of two finger millet genotypes GP1 (low Ca(2+)) and GP45 (high Ca(2+)), and the expression was determined through qRT-PCR...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28793995/transcriptome-profiling-from-adipose-tissue-during-a-low-calorie-diet-reveals-predictors-of-weight-and-glycemic-outcomes-in-obese-nondiabetic-subjects
#5
Claudia Armenise, Gregory Lefebvre, Jérôme Carayol, Sophie Bonnel, Jennifer Bolton, Alessandro Di Cara, Nele Gheldof, Patrick Descombes, Dominique Langin, Wim Hm Saris, Arne Astrup, Jörg Hager, Nathalie Viguerie, Armand Valsesia
Background: A low-calorie diet (LCD) reduces fat mass excess, improves insulin sensitivity, and alters adipose tissue (AT) gene expression, yet the relation with clinical outcomes remains unclear.Objective: We evaluated AT transcriptome alterations during an LCD and the association with weight and glycemic outcomes both at LCD termination and 6 mo after the LCD.Design: Using RNA sequencing (RNAseq), we analyzed transcriptome changes in AT from 191 obese, nondiabetic patients within a multicenter, controlled dietary intervention...
August 9, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28792546/host-plant-driven-transcriptome-plasticity-in-the-salivary-glands-of-the-cabbage-looper-trichoplusia-ni
#6
Loren J Rivera-Vega, David A Galbraith, Christina M Grozinger, Gary W Felton
Generalist herbivores feed on a wide array of plants and need to adapt to varying host qualities and defenses. One of the first insect derived secretions to come in contact with the plant is the saliva. Insect saliva is potentially involved in both the pre-digestion of the host plant as well as induction/suppression of plant defenses, yet how the salivary glands respond to changes in host plant at the transcriptional level is largely unknown. The objective of this study was to determine how the labial salivary gland transcriptome varies according to the host plant on which the insect is feeding...
2017: PloS One
https://www.readbyqxmd.com/read/28769956/rosaceae-fruit-development-ripening-and-post-harvest-an-epigenetic-perspective
#7
REVIEW
Silvia Farinati, Angela Rasori, Serena Varotto, Claudio Bonghi
Rosaceae is a family with an extraordinary spectrum of fruit types, including fleshy peach, apple, and strawberry that provide unique contributions to a healthy diet for consumers, and represent an excellent model for studying fruit patterning and development. In recent years, many efforts have been made to unravel regulatory mechanism underlying the hormonal, transcriptomic, proteomic and metabolomic changes occurring during Rosaceae fruit development. More recently, several studies on fleshy (tomato) and dry (Arabidopsis) fruit model have contributed to a better understanding of epigenetic mechanisms underlying important heritable crop traits, such as ripening and stress response...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28768832/dietary-fat-quantity-and-type-induce-transcriptome-wide-effects-on-alternative-splicing-of-pre-mrna-in-rat-skeletal-muscle
#8
Adam J Black, Suhana Ravi, Leonard S Jefferson, Scot R Kimball, Rudolf J Schilder
Background: Fat-enriched diets produce metabolic changes in skeletal muscle, which in turn can mediate changes in gene regulation.Objective: We examined the high-fat-diet-induced changes in skeletal muscle gene expression by characterizing variations in pre-mRNA alternative splicing.Methods: Affymetrix Exon Array analysis was performed on the transcriptome of the gastrocnemius/plantaris complex of male obesity-prone Sprague-Dawley rats fed a 10% or 60% fat (lard) diet for 2 or 8 wk. The validation of exon array results was focused on troponin T (Tnnt3)...
August 2, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28757615/ror%C3%AE-controls-hepatic-lipid-homeostasis-via-negative-regulation-of-ppar%C3%AE-transcriptional-network
#9
Kyeongkyu Kim, Kyungjin Boo, Young Suk Yu, Se Kyu Oh, Hyunkyung Kim, Yoon Jeon, Jinhyuk Bhin, Daehee Hwang, Keun Il Kim, Jun-Su Lee, Seung-Soon Im, Seul Gi Yoon, Il Yong Kim, Je Kyung Seong, Ho Lee, Sungsoon Fang, Sung Hee Baek
The retinoic acid receptor-related orphan receptor-α (RORα) is an important regulator of various biological processes, including cerebellum development, circadian rhythm and cancer. Here, we show that hepatic RORα controls lipid homeostasis by negatively regulating transcriptional activity of peroxisome proliferators-activated receptor-γ (PPARγ) that mediates hepatic lipid metabolism. Liver-specific Rorα-deficient mice develop hepatic steatosis, obesity and insulin resistance when challenged with a high-fat diet (HFD)...
July 31, 2017: Nature Communications
https://www.readbyqxmd.com/read/28753942/quercetin-and-green-tea-extract-supplementation-downregulates-genes-related-to-tissue-inflammatory-responses-to-a-12-week-high-fat-diet-in-mice
#10
Lynn Cialdella-Kam, Sujoy Ghosh, Mary Pat Meaney, Amy M Knab, R Andrew Shanely, David C Nieman
Quercetin (Q) and green tea extract (E) are reported to counter insulin resistance and inflammation and favorably alter fat metabolism. We investigated whether a mixture of E + Q (EQ) could synergistically influence metabolic and inflammation endpoints in a high-fat diet (HFD) fed to mice. Male C57BL/6 mice (n = 40) were put on HFD (fat = 60%kcal) for 12 weeks and randomly assigned to Q (25 mg/kg of body weight (BW)/day), E (3 mg of epigallocatechin gallate/kg BW/day), EQ, or control groups for four weeks. At 16 weeks, insulin sensitivity was measured via the glucose tolerance test (GTT), followed by area-under-the-curve (AUC) estimations...
July 19, 2017: Nutrients
https://www.readbyqxmd.com/read/28753670/effects-of-dietary-lipids-on-the-hepatopancreas-transcriptome-of-chinese-mitten-crab-eriocheir-sinensis
#11
Banghong Wei, Zhigang Yang, Jianyi Wang, Aqin Chen, Qiuyan Shi, Yongxu Cheng
Fish oil supplies worldwide have declined sharply over the years. To reduce the use of fish oil in aquaculture, many studies have explored the effects of fish oil substitutions on aquatic animals. To illustrate the effects of dietary lipids on Chinese mitten crab and to improve the use of vegetable oils in the diet of the crabs, 60 male juvenile Chinese mitten crabs were fed one of five diets for 116 days: fish oil (FO), soybean oil (SO), linseed oil (LO), FO + SO (1:1, FSO), and FO + LO (1:1, FLO). Changes in the crab hepatopancreas transcriptome were analyzed using RNA sequencing...
2017: PloS One
https://www.readbyqxmd.com/read/28740210/elucidating-the-mechanisms-underlying-the-beneficial-health-effects-of-dietary-pollen-on-honey-bees-apis-mellifera-infested-by-varroa-mite-ectoparasites
#12
Desiderato Annoscia, Virginia Zanni, David Galbraith, Anna Quirici, Christina Grozinger, Renzo Bortolomeazzi, Francesco Nazzi
Parasites and pathogens of the honey bee (Apis mellifera) are key factors underlying colony losses, which are threatening the beekeeping industry and agriculture as a whole. To control the spread and development of pathogen infections within the colony, honey bees use plant resins with antibiotic activity, but little is known about the properties of other substances, that are mainly used as a foodstuff, for controlling possible diseases both at the individual and colony level. In this study, we tested the hypothesis that pollen is beneficial for honey bees challenged with the parasitic mite Varroa destructor associated to the Deformed Wing Virus...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724910/investigating-glycemic-potential-of-rice-by-unraveling-compositional-variations-in-mature-grain-and-starch-mobilization-patterns-during-seed-germination
#13
Maria Krishna de Guzman, Sabiha Parween, Vito M Butardo, Crisline Mae Alhambra, Roslen Anacleto, Christiane Seiler, Anthony R Bird, Chung-Ping Chow, Nese Sreenivasulu
Rice lines with slower starch digestibility provide opportunities in mitigating the global rise in type II diabetes and related non-communicable diseases. However, screening for low glycemic index (GI) in rice breeding programs is not possible due to time and cost constraints. This study evaluated the feasibility of using in vitro cooked grain amylolysis, starch mobilization patterns during seed germination, and variation in starch structure and composition in the mature seed to differentiate patterns of starch digestibility...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28711489/time-course-microarrays-reveal-early-activation-of-the-immune-transcriptome-in-a-choline-deficient-mouse-model-of-liver-injury
#14
Koji Mitsumoto, Rina Watanabe, Katsuki Nakao, Hisaki Yonenaka, Takao Hashimoto, Norihisa Kato, Thanutchaporn Kumrungsee, Noriyuki Yanaka
AIMS: Choline-deficient diet is extensively used as a model of nonalcoholic fatty liver disease (NAFLD). In this study, we explored genes in the liver for which the expression changed in response to the choline-deficient (CD) diet. MAIN METHODS: Male CD-1 mice were divided into two groups and fed a CD diet with or without 0.2% choline bitartrate for one or three weeks. Hepatic levels of choline metabolites were analyzed by using liquid chromatography mass spectrometry and hepatic gene expression profiles were examined by DNA microarray analysis...
September 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28702319/grandpaternal-induced-transgenerational-dietary-reprogramming-of-the-unfolded-protein-response-in-skeletal-muscle
#15
Petter S Alm, Thais de Castro Barbosa, Romain Barrès, Anna Krook, Juleen R Zierath
OBJECTIVE: Parental nutrition and lifestyle impact the metabolic phenotype of the offspring. We have reported that grandpaternal chronic high-fat diet (HFD) transgenerationally impairs glucose metabolism in subsequent generations. Here we determined whether grandpaternal diet transgenerationally impacts the transcriptome and lipidome in skeletal muscle. Our aim was to identify tissue-specific pathways involved in transgenerational inheritance of environmental-induced phenotypes. METHODS: F0 male Sprague-Dawley rats were fed a HFD or chow for 12 weeks before breeding with chow-fed females to generate the F1 generation...
July 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28700945/reduced-circulating-insulin-enhances-insulin-sensitivity-in-old-mice-and-extends-lifespan
#16
Nicole M Templeman, Stephane Flibotte, Jenny H L Chik, Sunita Sinha, Gareth E Lim, Leonard J Foster, Corey Nislow, James D Johnson
The causal relationships between insulin levels, insulin resistance, and longevity are not fully elucidated. Genetic downregulation of insulin/insulin-like growth factor 1 (Igf1) signaling components can extend invertebrate and mammalian lifespan, but insulin resistance, a natural form of decreased insulin signaling, is associated with greater risk of age-related disease in mammals. We compared Ins2(+/-) mice to Ins2(+/+) littermate controls, on a genetically stable Ins1 null background. Proteomic and transcriptomic analyses of livers from 25-week-old mice suggested potential for healthier aging and altered insulin sensitivity in Ins2(+/-) mice...
July 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28691019/fish-oil-feeding-modulates-the-expression-of-hepatic-micrornas-in-a-western-style-diet-induced-nonalcoholic-fatty-liver-disease-rat-model
#17
Hualin Wang, Yang Shao, Fahu Yuan, Han Feng, Na Li, Hongyu Zhang, Chaodong Wu, Zhiguo Liu
Nonalcoholic fatty liver disease (NAFLD) is one of the most prevalent chronic liver diseases worldwide. Recent studies have indicated that fish oil supplementation has benefits against NAFLD. Our previous transcriptomic study has validated the effect of fish oil supplementation on altering hepatic gene expression in a NAFLD rat model. In the current study, we examined the effects of fish oil on the expression of hepatic microRNAs. Male Sprague-Dawley rats were fed with a lab chow (CON), high-fat high-cholesterol diet (WD), or WD supplemented with fish oil (FOH), respectively...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28687644/genome-scale-model-and-omics-analysis-of-metabolic-capacities-of-akkermansia-muciniphila-reveal-a-preferential-mucin-degrading-lifestyle
#18
Noora Ottman, Mark Davids, Maria Suarez-Diez, Sjef Boeren, Peter J Schaap, Vitor A P Martins Dos Santos, Hauke Smidt, Clara Belzer, Willem M de Vos
The composition and activity of the microbiota in the human gastrointestinal tract is primarily shaped by nutrients derived either from food or the host. Bacteria colonizing the mucus layer have evolved to use mucin as a carbon and energy source. One of the members of the mucosa-associated microbiota is Akkermansia muciniphila, which is capable of producing an extensive repertoire of mucin-degrading enzymes. To further study substrate utilization abilities of A. muciniphila, we constructed a genome-scale metabolic model to test amino acid auxotrophy, vitamin biosynthesis, and sugar degrading capacities...
July 7, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28684688/gene-dairy-food-interactions-and-health-outcomes-a-review-of-nutrigenetic-studies
#19
REVIEW
Kevin B Comerford, Gonca Pasin
Each person differs from the next by an average of over 3 million genetic variations in their DNA. This genetic diversity is responsible for many of the interindividual differences in food preferences, nutritional needs, and dietary responses between humans. The field of nutrigenetics aims to utilize this type of genetic information in order to personalize diets for optimal health. One of the most well-studied genetic variants affecting human dietary patterns and health is the lactase persistence mutation, which enables an individual to digest milk sugar into adulthood...
July 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28673325/maternal-intake-of-high-n-6-polyunsaturated-fatty-acid-diet-during-pregnancy-causes-transgenerational-increase-in-mammary-cancer-risk-in-mice
#20
Nguyen M Nguyen, Fabia de Oliveira Andrade, Lu Jin, Xiyuan Zhang, Madisa Macon, M Idalia Cruz, Carlos Benitez, Bryan Wehrenberg, Chao Yin, Xiao Wang, Jianhua Xuan, Sonia de Assis, Leena Hilakivi-Clarke
BACKGROUND: Maternal and paternal high-fat (HF) diet intake before and/or during pregnancy increases mammary cancer risk in several preclinical models. We studied if maternal consumption of a HF diet that began at a time when the fetal primordial germ cells travel to the genital ridge and start differentiating into germ cells would result in a transgenerational inheritance of increased mammary cancer risk. METHODS: Pregnant C57BL/6NTac mouse dams were fed either a control AIN93G or isocaloric HF diet composed of corn oil high in n-6 polyunsaturated fatty acids between gestational days 10 and 20...
July 3, 2017: Breast Cancer Research: BCR
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